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<p>Me too! I've had a stash of V3207s (the Coolaudio clone) for a
few years just waiting for me to make something nice, so this gave
me a good nudge - I'd never really thought much about
switched-capacitor filters (though had considered tracking
filters)</p>
<p>Interesting note on the MW thread -
<a class="moz-txt-link-freetext" href="https://modwiggler.com/forum/viewtopic.php?t=259670">https://modwiggler.com/forum/viewtopic.php?t=259670</a><br>
</p>
<p>"BBDs are not as "dirty" as people generally think. There are
ways to make them sound vastly cleaner. <font color="#ff0000">Current-sink
load on the output</font>, and very sharp switched capacitor
input/output filters (synced to sample clock), along with careful
pre/de-emphasis can produce shockingly good results. Companders
just unnecessarily mess up the signal. Current sink load reduces
both distortion and noise quite significantly. Clock noise is
still a significant contributor in most designs, even if not
perceived as a "whine" or tone."</p>
<p>The current-sink load mention seems interesting, something to
investigate, though I'm somewhat unsure how best to implement -
the MXR Carbon Copy (later version with Reticons) may give a clue
though: <br>
<a class="moz-txt-link-freetext" href="http://experimentalistsanonymous.com/diy/Schematics/Delay%20Echo%20and%20Samplers/MXR%20Analog%20Delay%202.png">http://experimentalistsanonymous.com/diy/Schematics/Delay%20Echo%20and%20Samplers/MXR%20Analog%20Delay%202.png</a></p>
<p>Tom<br>
</p>
<div class="moz-cite-prefix">On 10/03/2022 19:03, Quincas Moreira
via Synth-diy wrote:<br>
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<div dir="ltr">Loved this one Aaron, thank you so much!</div>
<br>
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<div dir="ltr" class="gmail_attr">On Mon, Mar 7, 2022 at 6:06 PM
Lanterman, Aaron D via Synth-diy <<a
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class="moz-txt-link-freetext">synth-diy@synth-diy.org</a>>
wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">…with
a cameo from switched-capacitor filters:<br>
<br>
<a href="https://youtu.be/E2YLfw0qtDE" rel="noreferrer"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://youtu.be/E2YLfw0qtDE</a><br>
<br>
One of my earliest memories from this list is Harry Bissell
talking how how much BBD sucks. ;)<br>
<br>
Aaron Lanterman, Prof. of ECE, Georgia Tech<br>
My blog on Education and Innovation: <a
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My blog on Electronics and Programming: <a
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target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://lantertronics.blogspot.com</a><br>
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Moreira</div>
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